Customers are space saving conscious. Especially, they feel the value in case that the machine room is located on middle of the building due to the benefits (increase of space efficiency and the freedom of building construction planning) - Rated Speed : 1.0 ~ 2.5m/sec - Duty Load : 450 ~ 1,600kg IRIS pursues cost savings of bullding power supply by reducing the capacity of electical facility required for the operation of elevator. Customers may benefit 1/3 space from a smaller size.The absence of gearbox allows to eliminate noise from gear friction. Its coaxial transmission also reduces vibration and noise effectively.